package com.wyx.MybatisPlusConfig;


import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@MapperScan("com.wyx.mapper,com.wyx.SpringSecurityConfig.mapper")
//@MapperScan("com.wyx.mapper") 开始时是配置在主启动类上，当我们创建Mybatis-Plus的配置类时，一般情况下把它移动到我们的配置类上
public class MybatisPlusConfig {
    /**
     *
     旧版
    @Bean
    public OptimisticLockerInterceptor optimisticLockerInterceptor() {
        return new OptimisticLockerInterceptor();
    }
    // 旧版
     @Bean
     public PaginationInterceptor paginationInterceptor() {
     PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
     // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
     // paginationInterceptor.setOverflow(false);
     // 设置最大单页限制数量，默认 500 条，-1 不受限制
     // paginationInterceptor.setLimit(500);
     // 开启 count 的 join 优化,只针对部分 left join
     paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
     return paginationInterceptor;
     }
     */
    
    /**
     * 乐观锁插件，分页插件
     */
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
        // 乐观锁
        mybatisPlusInterceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
        // 分页插件
        mybatisPlusInterceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.H2));
        return mybatisPlusInterceptor;
    }

}
